cargo-crev: Verification does not work as expected

I’ve got a project, that uses the log-0.4.6 crate.

I trust you and also fetched your reviews:

$ cargo crev query id trusted
8iUv_SPgsAQ4paabLfs1D9tIptMnuSRZ344_M-6m9RE
Kvz2HoEIOc4U9Gg3vNDbTVO54yF1YX6RuGi2o8pZkIs

$ cargo crev query review log
version: -1
date: "2018-12-16T14:37:00.691648406-08:00"
from:
  id-type: crev
  id: 8iUv_SPgsAQ4paabLfs1D9tIptMnuSRZ344_M-6m9RE
  url: "https://github.com/dpc/crev-proofs"
package:
  source: "https://crates.io"
  name: log
  version: 0.4.6
  digest: Y1F9HJSB_b1oFc1wz1qlblXXLoDyquDcVGM4g3SAhBk
review:
  thoroughness: low
  understanding: medium
  rating: positive

but when I want to verify my project’s deps, the log crate has the status unknown

$ cargo crev verify deps | grep log-
    Updating crates.io index
unknown  /home/hirschen/.cargo/registry/src/github.com-1ecc6299db9ec823/log-0.4.6

What am I doing wrong?